'Angels of God' in the Bible

For in the resurrection they neither marry nor are married: but are as the angels of God in heaven.

I say unto you, Whosoever confesseth me before men, even him shall the son of man confess also before the angels of God.

And he that denieth me before men, shall be denied before the angels of God.

Likewise I say unto you, Joy is made in the presence of the angels of God over one sinner that repenteth."

And he said unto him, "Verily, verily, I say unto you, Hereafter shall ye see heaven open, and the angels of God ascending, and descending over the son of man."

And again when he bringeth in the first begotten son into the world, he saith, "And all the angels of God shall worship him."